222379740 has 144 divisors (see below), whose sum is σ = 759822336. Its totient is φ = 52156800.

The previous prime is 222379727. The next prime is 222379741. The reversal of 222379740 is 47973222.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 222379695 and 222379704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222379741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59569 + ... + 63191.

It is an arithmetic number, because the mean of its divisors is an integer number (5276544).

Almost surely, 2^222379740 is an apocalyptic number.

222379740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222379740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (379911168).

222379740 is an abundant number, since it is smaller than the sum of its proper divisors (537442596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222379740 is a wasteful number, since it uses less digits than its factorization.

222379740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3680 (or 3675 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 222379740 is about 14912.4022209703. The cubic root of 222379740 is about 605.8499448750.

The spelling of 222379740 in words is "two hundred twenty-two million, three hundred seventy-nine thousand, seven hundred forty".